Tobacco-pipe.



P. H. BUSH.

TOBACCO PIPE. APPLIOATION FILED nmz, 1910.

Patented Mar. 14, 1911.

FRANK HENRY BUSH, 0F LONDON, ENGLAND.

TOBACCO-PIPE.

Specification of Letters Patent.

Patented Mar. 14e, 1911.

Application filed April 2, 1910. Serial No. 553,077.

To all whom it may concern:

Be it known that I, FRANK HENRY BUSH, a subject of the King of Great Britain, residing at No. 4L Park Place, St. James, London, S. W., England, have invented new and useful Improvements in Tobacco-Pipes, of which the following is a specification.

This invention relates to tobacco pipes, and its object is to so construct the pipe that cleaning is facilitated, without however affecting the external appearance. For this purpose, instead of the stem of the pipe being bored with the usual passage of relatively small diameter suliicient merely to conduct the smoke from the bowl to the mouth-piece, the stem is formed with relatively wide bore adapted to receive a plug in which the actual smoke passage is bored and the extremity of such plug, remote from the mouth-piece is formed with a portion of the bottom of the bowl.

The mouth-piece of the pipe, instead of being' secured to the stem in the usual manner, for example by a screw or by frictional engagement, is secured in a similar manner to the above described plug, with the result that by separating the mouth-piece from the stem, the plug will be withdrawn with the mouth-piece, from the stem and bowl of the pipe. With the plug so withdrawn, the portion of the bottom of the bowl which surrounds the extremity of the smoke passage is exposed, rendering it easy to insert a cleaning wire through the entire bore of the pipe from the bowl-end or to grasp the extremity of a wire inserted from the mouthpiece end.

Two constructional forms of the invention are illustrated on the accompanying drawing, in which Figure l is a longitudinal section of a pipe, Fig. 2 a plan corresponding therewith, Fig. 3 is a longitudinal sectional elevation of a modification and Fig. 4 is a transverse section taken along the line 4 4 of each of the preceding figures.

a is the bowl of the pipe, bthe stem and c the mouth-piece thereof. The stem Z) is bored out to an interna-l diameter such as t0 t a plug d, provided with the smoke passage c, which plug is secured to the mouthpiece c by a unionscrew f and, further, extends beyond the stem within the bowl of the pipe. The extension of the plug tl within the bowl a is recessed to receive a portion of the internal surface of the bottom of the bowl.

As shown in Figs. l and 2, the plug d extends rightacross the bowl from the stem to the opposite side of the bowl, and the entire surface of a longitudinal section of the bottom of the bowl is formed in the plug, whereas, in Fig. 3 the plug Z extends from the stem slightly more than half-way across the bowl and merely a corresponding portion of the internal'surface of the bottom of the bowl is formed thereon.

To reduce the liability of the plug Z binding within the stem o, the former is formed with an external annular groove g or, alternatively, the cavity in the stem b is formed with an internal annular groove it, as shown in Figs. l and 8 respectively.

The plug al is preferably formed of the same material as the bowl a and stem b, which material in the majority of pipes is brier-root wood.

I claim:

In a tobacco pipe, a bowl, a stem provided with a relatively wide bore, a plug removably positioned within said bore engaging the inner surface thereof at the end adjacent to said bowl and provided with a portion eX- tending into said bowl and a mouth piece secured to said plug, said plug being provided with an annular groove in its outer surface intermediate its ends, said extending portion being shaped on its face to correspond to the curvature of the bowl and forming substantially the base of the tobacco chamber of such bowl.

In testimony whereof I have signed my name to this specification in the presence of two subscribing witnesses.

FRANK HENRY BUSH.

Witnesses:

I-I. D. JAMESON, R. I. WILLIAMS.

Copies of this patent may be obtained for ve cents each, by addressing the Commissioner of latents, Washington, D. C. 

